This series 700 channel balance also known as a block and tackle balance has a 33" long metal channel and is for a non tilt window. The channel's width measures 9/16" but is considered 1/2" in the trade. This balance comes fully assembled with a 15-008 shoe and a 19-001 top attached.
|Stamp Option ||Sash Weight Range|
|3210 ||8 to 13 lb |
|3220 ||13 to 18 lb |
|3230 ||18 to 23 lb |
|3240 ||23 to 28 lb |
*This information is based on 2 balances per sash. Balances are designed assuming friction in the jamb weather-strip will carry a portion of the sash weight. Suggested sash weights are approximate.